ISA bus hack

[Eric Smith]

Jim wrote:
> Mentioning my old employer, Calera Recognition Systems, reminded me of
> this ISA bus "hack."

Very clever.  Thanks for sharing the description; that's the kind of
information that we'd probably never find anywhere else.

The one-bit-at-a-time arbitration based on a node number or serial
number has been used in many other arbitration protocols.  I wonder
where it was first invented.

Eric